|Player Level Req.||Level 37|
|Building Required||Frontier Recruitment HQ level 6|
The Frontier Engineer, like most units trained at the Frontier Recruitment HQ, has an exceptionally high critical chance, which increases with ranks. The Engineer is pretty much a straightforward Grenadier with high damage (taking into consideration the high critical chance).
The damage is also comparable to the Allied Boom Boom. The Boom-Boom has the benefit of higher base damage, but the Engineer's critical chance makes up for that difference in many situations.
Both have comparable defensive stats, although the Boom-Boom has much higher . The Boom-Boom is harder to rank up than the Engineer, too. The Engineer shines most because of its low cost, anti-air toss, and low UV.
|Training Cost — Frontier Recruitment HQ|
|Time||2h 6m||1h 48m||1h 30m||1h 12m||54m|
|Time||2h 13m||2h 13m||2h 13m||2h 13m||2h 13m||2h||1h 46m||1h 33m||1h 20m||53m 20s|
- This unit's appearance may have been inspired by Team Fortress 2's own engineer class.
- Small grenade attack gained the ability to hit air targets.
- Unit introduced.